Hello,
I'am using the evalboard EVAL-CN225-SDPZ for AD7687 evaluation and getting the missing codes. CN225 is connected to EVAL-SDP-CB1Z. I connected a little 1,5V battery to the input just for testing. I’m using the CN0225.exe software for it. Analyzing exported data in Excel shows some missing intermediate values, please find the attached histogram picture. I also replaced the ADC AD7687 with the new one and got the same behavior.
Do you have any idea what the reason is?
Many thanks in advance.
Vitali Lach